On 17 October 2014 15:31, Gordon Burgess-Parker <gordonbp at mail.com> wrote:
>> control sda5_crypt ubuntu--vg-root ubuntu--vg-swap_1
>
Nice - so the device is present, I reckon it just needs to be formatted.
sudo mkswap /dev/mapper/ubuntu--vg-swap_1
sudo swapon /dev/mapper/ubuntu--vg-swap_1
Once it's formatted it should also show up in 'blkid'. After swapon it
should show as active in 'free'.